材料科学与工程学报2012，Vol.30Issue(5)：654-658,701,6.
电磁搅拌近共晶Al-Si合金的半固态浆料制造
Semisolid Slurry Preparation of Near-Eutectic Al-Si Alloy with Electromagnetic Stirring
摘要
Abstract
Effect of electromagnetic stirring(EMS) on solidification microstructure of an eutectic Al-Si alloy was investigated.It was found that EMS intensity could affect the evolution of solidification microstructure and the morphology of primary α-phase.All results showed that effect of EMS on the morphology of primary α-phase was relatively small when the output voltage was lower than 60 V.However,when the voltage was over 90 V and EMS was applied for 10 sec,the globular particles of α-phase could be formed in the present alloy.When the voltage was 120 V,the primary α-phase exhibited the globular morphology and the distribution of globular α-particles was uniform.Effect of stirring time on the morphology of primary α-phase was verified experimentally.It was found that there was no visible improvement of microstructure when the stirring time was longer than 10 sec.Effect of casting parameters on the morphology of primary α-phase was also examined.关键词
电磁搅拌/初生α相/近共晶合金Key words
EMS/primary α-phase/eutectic alloy分类
矿业与冶金引用本文复制引用
高鹏..电磁搅拌近共晶Al-Si合金的半固态浆料制造[J].材料科学与工程学报,2012,30(5):654-658,701,6.基金项目
Project 200827024 supported by applied basic research of Yunnan province （）
